EVERYBODY NEEDS TO READ THIS: Mega Ampharos is the ultimate special sweeper in a trick room team. His special attack is high enough to OHKO everything and his ability let's nothing be immune to the godlike power of Ampharos. Seriously. Just use him in Trick Room. Or just run an agility set.

19 Answers

Thunderbolt: Good power, high accuracy, chance to paralyze, can attack Pokemon using Fly, STAB.

Power Gem: Decent power, high accuracy.

Light Screen: Raises Sp. Def, makes it more likely that the foe will decide to use a Physical attack, allowing Static to take effect.

Signal Beam: Decent power, high accuracy, chance to confuse.

(Originally posted by trachy in the question.)

I like this set. The only problem I have is the fact that as you said, Light Screen makes your opponent more inclined to use physical moves, I would teach Ampharos the move Reflect (Which it can learn through breeding). since its only weakness is ground (almost always physical) to cover it, and it has higher special defense anyway.

Attract + Static annoys your foes to death :PReflect/Light Screen for team support, or as Trachy said, Reflect for making Static work better, and support from Light ClayMagnet Rise makes it immune to Ground-Type moves like EarthquakeThunderbolt to attack what can be defeated :P

Modest Nature (+SpAtk, -Atk) OR, you could go with Quiet Nature (+SpAtk, - Speed) if you want to set up a Trick Room team! ^.~

Moves:

Focus Blast

Thunderbolt

Dragon Pulse

Power Gem

Thunderbolt is STAB (obviously).

Dragon Pulse is also a STAB move (when Mega-Evolved), it adds extra coverage, and it'll get the jump on Pokemon like Garchomp, which seem abundant in Gen VI.

Focus Blast covers Normal, Ice, Rock, Dark, and Steel types. It isn't the most accurate move, but it's powerful. (Base SpAtk of 120) As such, it has proven it's usefulness by getting me out of many tight scrapes in the past. (Especially against bulky Ice types)

Finally, Power Gem covers Fire, Ice, Flying, and Bug types. It is also more effective over a wider range of opponents than Signal Beam due to the fact that bug type moves are not very effective against Fire, Fighting, Poison, Flying, Ghost, Steel, AND Fairy types. This makes the move fairly useless online if your up against a Pokemon that is a mix of/is any of these types. Thus, Power Gem is the better option. =D

-cotton guard
idk about black and white and lower, but in black2/white2
it raises defense by 4 levels.

-echoed voice
1. he has high sp. attack
2.metronome and move ability combo is killer!
3.good against all types in between of what he doesnt have.

-magnet rise
no weakness to ground

So basically, I think this is the best setup. Thunderbolt is reliable with STAB and if you need to use it twice it'll do more damage the second time. echoed voice will wipe them out with two or three hits, and with the metronome and echoed voice ability you can basically wipe out every Pokemon that won't tank him or is ghost. Cotton guard is just amazing. If you want something else, I would try hidden power (Ice) because cotton guard will protect you from ground and them wipe them with hidden power.

Also if you want to try confuse ray instead of magnet rise or hidden power you can, but that's not the best option.

Ampharos finally has its time to shine! I have it as a slow, but hard-hitting bulky kind of Ampharos. It learns Dragon Pulse in this generation, which is a great STAB move. Thunderbolt there for STAB, coverage, etc... You just need it. Thunder wave because it has the bulk to be able to take a hit and is able to cripple the opponent to 25% speed and a chance to miss. HP Ice to cover its Ground weakness and for coverage, or Focus Blast for risky coverage, and Signal Beam if you want to cover Grass, Psychic and Dark types.

I would really recommend this set. Electro Ball has a BP of 150 when your opponent has 25% or less of Ampharos's speed. However, Ampharos is a somewhat slow Pokemon, so that's where t-wave comes in. Instantly halves the opponent's speed and you have a pretty OP electric attack. In-Game, there's really not a lot of super fast Pokemon used by trainers or gym leaders, so for me, Electro Ball = way more powerful than Thunderbolt OR thunder, and I used both to test it (pokemon white 2).